Name Awesome

Iain

#7,353 in 2025Boys' name

Yahweh is gracious, through John

Iain has been given to 2,911 babies in the U.S. since 1953. In 2025 it ranked #7,353 of 13,926 boys’ names in use. Its peak year was 2003, with 126 recorded.

Babies named Iain, 2025

1 in 301,000

Iain over time, 1880–2025

Boys
05010015018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Iain: meaning, origin, and history

Yahweh is gracious, through John

Scottish Gaelic

What Iain means

Iain belongs to the name family reached through Iain → John. Its meaning is “Yahweh is gracious”.

Origin, language, and formation

Iain is used in English and Scottish Gaelic. Its origins include Scottish Gaelic.

Related names and everyday forms

Related names include John and Ian.

Pronunciation and spelling

In Scottish Gaelic, Iain is pronounced /ˈi.aɲ/.

American usage and historical context

In the United States, 2,911 boys were recorded with the name Iain between 1953 and 2025. Its highest annual count was 126 in 2003; its best national rank was #1,180 in 2003.

Over 5 years its rank fell, from #2,739 in 2020 to #7,353 in 2025. Over 10 years its rank fell, from #2,500 in 2015 to #7,353 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Iain?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 301,000
11 of 3,315,165 births
Among boys only
1 in 155,000
<0.01% of boys
Rank, 2025
#7,353
of 13,926 boys’ names in use
Coin-flip room size
208,901 kids
Even odds of a second one

Where Iain sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 208,901 children born in 2025 and it's an even bet that one of them is another Iain. In a class of 30 the chance is Under 1%.

When Iains were born

Half of everyone ever recorded as Iain was born before 2002 — so the typical Iain is around 23 today.

Median birth year
2002
About 23 years old
Biggest decade
2000s
34.7% of all use
Born in the last 25 years
54.7%
A modern name
Recorded since 1950
2,911
People you could plausibly meet
Choose a decade

2000s — 34.7% of all recorded uses (1,011).

Is Iain rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−3,112
Places dropped
Rank vs 5 years ago
−4,614
Places dropped
Rank vs 10 years ago
−4,853
Places dropped
Births vs 10 years ago
0.22×
Fewer babies than then
Share of its own peak
8.7%
Peak was 2003 (126)
Years since peak
22
Years
Year-to-year steadiness
Shifting
17.3% average annual change
Best rank ever
#1,180
2003

Spellings of Iain

Iain is not the most common spelling — Ian is, with 20.7% against Iain's 0.23%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Iain is used

Across 1910–2025, Iain was most concentrated in California — about 1 in 50,000 boys, against 1 in 146,481 across all states with data. It was least common in Wisconsin (1 in —).

02 per 100,000

Most concentrated

  1. 1California1 in 50,000
  2. 2Colorado1 in 100,000
  3. 3Massachusetts1 in 100,000
  4. 4Michigan1 in 100,000
  5. 5New York1 in 100,000
  6. 6Texas1 in 100,000
  7. 7Virginia1 in 100,000
  8. 8Washington1 in 100,000

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Iain has too little recent state data to map, so this covers all years from 1910.

Iain around the world

Where Iain ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    1996–2021
    #3,990
    in 2021
  • Scotland
    1974–2025
    #400
    in 2025
  • Northern Ireland
    1997–2007
    #315
    in 2007
  • Ireland
    1965–2011
    #623
    in 2011
  • France
    1993–1993
    #3,445
    in 1993
  • Canada
    1991–2022
    #2,335
    in 2022
  • South Australia
    1946–2005
    #643
    in 2005

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.

Notable people named Iain

People whose public names include Iain, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Iain by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#7,353
Trend vs 5 yrs ago
Down 4,614
Best rank ever
#1,180
2003
Peak year
2003
126 that year
First recorded
1953
Last recorded
2025
All-time count
2,911
Count in 2025
11

Names similar to Iain

Matched on shared beginnings and endings, similar length, and comparable popularity.

KainDainRainCainBlainAlainZainShainLainAdrainNainBrainAntwainHussainJermainDwainGermainEfrainBainHusainBritainOwainMcclainMclain

Names with a curve like Iain

Not spelling — timing. These names rose, peaked and faded in the same years as Iain, so they read as being from the same moment even when they look nothing alike.

DevlinFavianDavenJavanJalilBlayneJuancarlosLeobardoJarrenKaronOsbaldoJaren

Sibling names for Iain

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Iain

Top names of 2003, Iain's peak yearThe 2000s in fullOther names that peaked in 2003Boys' names starting with IJohn Variations & Nicknames